Electric heater



I. L. HADLEY ELECTRIC HEATER May 15, 1923 Fild Aug. 23

INVENTOR.

v y B A TTORNiEY,

. to such disclosure. I may sistance element of the device,

lowin said description.

"ture a flexible container or ha i which. .15 of a size to compartive y Patented May 15, 1923.

UNITED STATES 1,455,287 PATENT OFFICE.

IDALE L. HADLEY, OF HARTFORD, CONNECTICUT.

ELECTRIC HEATER.

Application filed .August 23, 1922. Serial No. 583,705.

This invention relates to electric heaters. While an electric-heater involving my invention, is capable of general use, it has been found of particular utility when emplo ed for warming substances contained wit in bottles and especially milk as used for feeding babies. It is a matter of fact, that when a mother is travelling with a young child who requires milk for its sustenance, the milk to prevent souring or decomposition, must be kept in a cool condition. When it becomes necessary. to heat the milk for consumption by the infant, it, as a rule, is impossible to accomplish the desire. I provide a structure which is exceedingly simple, compact and light, yet possessing the necessary strength and which will readily receive a milk or other bottle and which has facilities for heating the liquid in the bottle, or performing alike oflice, the article having as an accessory thereof, a plug which can be instantly connectedwith a standard socket so that when the current is led into the rethe saine will be heated by radiation to heat the contents of the bottle within the receptacle.

In the drawing accompanying and forming part of the present specification, I have shown in detail one of the several forms of embodiment a of the invention, which to enable those skilled in the art to practice the same, will be set forth fully in the following description. Obviously I am not restricted depart therefrom, in a number of particulars within the scope of the invention defined by the} claims fol- Re erring to the drawing: Figure 1 is anelevation of an electric heater involving the invention. Fig. 2 is a diagram, showing certain cncuit connections.

Like characters refer to like parts in both views. f

The device desirably involves in its strucsuch as 2 freely receive a standard milk bottle. This container or bag generally comprises inner and outer layers 3 and 4 between which is incorporated a resistance element or resistance coil as 5 to which the. leads 6 are connected. These leads extend from a connecting plug as 7 which is of screw form and which is intended to be removably fitted in the standard Edison socket, (not shown).

By throwing the switch 8, current will be caused to traverse the resistance element 5 so as to heat the resistance element, and the latter by radiation heating whatever may be inclosed in'the bag or container 2.

The bag or container 2 may freely receive bottle as 9, having a stopper, or cork 10, removably fitted in its neckas is quite com-' mon and which when closed is lntended to abut against the top or closed end of the flexible container or bag. The lower closed end of said flexible bag or container is held closed when desired by draw strings as 11.

In action, the draw strings 11 will be loosened and opened. following which the container or bag 2 will, also be opened so that the closed and filled bottle Scangbe inserted into the opened baguntil the stopper 10 abuts against the closed upper end of the bag at which time the draw strings 11 will be pulled and tied to each other to close tightly the lower end of the bag. When this is done,the plug 7 will, be connected to an Edison socket and the switch 8 will then be closed, so that the current from the prime source will traverse the resistance element or heating element 5 to heat it and thus cause the contents of the bottle 9 to be heated. When the liquid in the bottle is sufliciently warm, the switch 8 will be moved to off relation and the plug 7 can be unscrewed from the socket, the draw strings 11 opened andthe bottle 9 removed.

The heater involves in its make-up a container and although this'container is shown as being in the form of a flexible bag, I am not restricted in this regard, because the container in question ma be of. any other proper character.

Wnat I claim is: I

1. An article of the class described comprising a container to contain a bottle, a resistance element incorporated in the stock of the container, leads connected to the resistance element, and a plug electrically connected with the leads.

2. An article of the class prisinga container in layers, to contain bottle, a resistance element between the layers of the container, leads electrically connected to the resistance element, and a plug electrically connected with the leads.

3. An article of the class described, comprising a flexible bag in layers, to contain a bottle,

a resistance element between the layers of the bag, leads electrically connected to the resistance element, and a plug electrically connected with the leads, the cork of said bottle being adapted to abut against the upper end of the inner layer of the bag.

An article ofthe class described, comprising a flexible bag in layers, to contain a .slgnature.

1 bottle, a resistance element incorporated be- 15 tween the layers of the bag, leads electrically connected to the resistance element, and a IDALEL. HADLEY. \Vitnesses:

IIEATH SUTHERLAND, C. L. ROBINSON. 

